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Overprint and reprint

Overprint and reprint description/claims

The present invention relates to point of sale terminals generally.

The following patent documents are believed to represent the current state of the art:

U.S. Pat. Nos. 4,493,037; 5,038,284 and 5,812,668.

The present invention seeks to provide receipt cancellation functionality in point of sale terminals generally. The phrase “point of sale terminal” refers generally to electronic devices used at a point of sale which generate printed receipts, such as POS devices and electronic cash registers, examples of which are commercially available from VeriFone, Inc. of San Jose, Calif.

There is thus provided in accordance with a preferred embodiment of the present invention a point of sale terminal including a printer and electronic circuitry governing the operation of the printer, the electronic circuitry including transaction voiding responsive functionality for providing a visual indication of transaction voiding on transaction documentation.

In accordance with a preferred embodiment of the present invention the transaction voiding responsive functionality includes operator-actuation functionality for enabling an operator to cause transaction documentation already printed to be marked so as to visually indicate the transaction voiding. Preferably, the visual indication is a word.

In accordance with another preferred embodiment of the present invention the transaction documentation is a transaction receipt. Alternatively, the transaction documentation is a coupon.

There is also provided in accordance with another preferred embodiment of the present invention a point of sale terminal including a printer and electronic circuitry governing the operation of the printer, the electronic circuitry including automatic condition responsive documentation modification functionality for automatically causing transaction documentation already printed to be modified so as to visually indicate the cancellation thereof in response to a sensed condition.

In accordance with a preferred embodiment of the present invention the sensed condition is an interruption of electrical power to the point of sale terminal. Preferably, the automatic condition responsive documentation modification functionality modifies the transaction documentation by marking the receipt with a visual indication. More preferably, the visual indication is a word.

In accordance with a further preferred embodiment of the present invention the transaction documentation is a receipt. Alternatively, the transaction documentation is a coupon.

There is further provided in accordance with yet another preferred embodiment of the present invention a method for voiding a transaction, including printing transaction documentation utilizing a printer and while the transaction documentation is connected to the printer, employing electronic circuitry governing the operation of the printer and including transaction voiding responsive functionality for providing a visual indication of transaction voiding on the transaction documentation.

In accordance with yet another preferred embodiment of the present invention the employing includes actuating operator-actuation functionality thereby causing the transaction documentation to be marked so as to visually indicate the transaction voiding. Preferably, the visual indication is a word.

There is additionally provided in accordance with a further preferred embodiment of the present invention a method for modifying transaction documentation, including printing the transaction documentation utilizing a printer and while the transaction documentation is connected to the printer, employing electronic circuitry governing the operation of the printer and including automatic condition responsive documentation modification functionality, thereby automatically causing the transaction documentation to be modified so as to visually indicate the cancellation thereof in response to a sensed condition.

Preferably, in accordance with yet another preferred embodiment of the present invention the sensed condition is an interruption of electrical power to the receipt printer.

The present invention will be understood and appreciated from the following detailed description, taken in conjunction with the drawings in which:

FIG. 1 is a simplified pictorial illustration of a point of sale terminal constructed and operative in accordance with a preferred embodiment of the present invention;

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